4000 series: continuing airworthiness engineering regulations (CAE)

Individual Regulatory Articles (RA) relating to the 4000 series.

Withdrawn Regulatory Articles (RAs)

Any RAs that have been withdrawn for more than 6 months are no longer listed alongside the current RAs. Withdrawn RAs are listed for reference only at the bottom of this page (link available in the table of contents) under the heading Withdrawn Regulatory Articles.

If no RAs have been withdrawn from this series then Withdrawn Regulatory Articles will not be available to view.

MAA regulatory publications (MRP)

The Military Aviation Authority regulatory publications (MRP) are split into 3 layers:-

Regulation contact information


Telephone: +44 (0)30679 38269


MAA regulation enquiries
Juniper 1, Abbey Wood North
BS34 8QW

4000 series complete download

Table of contents

4009 to 4799: military deltas

4800 to 4849: MRP part 145

4900 to 4956: continuing airworthiness management organization (CAMO) regulation

4961 to 4966: continuing airworthiness

4970 to 4974: airworthiness review (AR) regulation

Withdrawn Regulatory Articles

The Rationale for withdrawal was correct at point of publish and it is incumbent on the user to check the references remain valid prior to use.

Published 18 November 2014
Last updated 13 August 2015 + show all updates
  1. A new heading, Withdrawn Regulatory Articles, has been added in order to separate current RAs from withdrawn RAs.

  2. First published.